42111339 has 4 divisors (see below), whose sum is σ = 56148456. Its totient is φ = 28074224.

The previous prime is 42111313. The next prime is 42111341. The reversal of 42111339 is 93311124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42111339 - 2⁷ = 42111211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42111359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018554 + ... + 7018559.

It is an arithmetic number, because the mean of its divisors is an integer number (14037114).

Almost surely, 2^42111339 is an apocalyptic number.

42111339 is a deficient number, since it is larger than the sum of its proper divisors (14037117).

42111339 is a wasteful number, since it uses less digits than its factorization.

42111339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14037116.

The product of its digits is 648, while the sum is 24.

The square root of 42111339 is about 6489.3250034191. The cubic root of 42111339 is about 347.9095500825.

The spelling of 42111339 in words is "forty-two million, one hundred eleven thousand, three hundred thirty-nine".